Back up ring for Grove RT630B

The back up ring 9926104801 functions as a support component within the hydraulic assemblies of the Grove RT630B crane. It is installed alongside primary pressure seals, such as o-rings or lip seals, to prevent them from extruding or deforming when subjected to high operating pressures. By maintaining the structural integrity of the seal, this component ensures the hydraulic system operates without fluid leakage or pressure loss.

This part is compatible with the Grove RT630B rough-terrain crane. It is engineered to fit precisely within the seal groove of the hydraulic cylinders, providing the necessary backing to support the primary seal during lifting and positioning operations. The design allows the ring to withstand the compressive forces present in the hydraulic circuit while remaining compatible with standard hydraulic fluids used in this machinery.

In hydraulic systems, back up rings serve to bridge the clearance gap between mating surfaces, such as a piston and cylinder wall. By preventing seal extrusion, these rings allow the primary seal to perform its intended function of containing pressurized fluid. Proper installation of this support ring is necessary to maintain the operational efficiency of the hydraulic actuators.